Measurement of Double Longitudinal Spin Asymmetry in Heavy Flavor Production at $\sqrt(s)=200GeV$ at RHIC

One of the main goals of the RHIC-SPIN program is to determine the contribution of gluons to the proton spin. At RHIC energies, The heavy quark (charm and beauty) production is expected to be dominated by gluon-gluon interactions, so a measurement of the double longitudinal spin asymmetry A$_{\rm LL}$ in heavy quark production in polarized p+p collisions hence allow us to directly probe the polarized gluon distribution inside the proton. The PHENIX experiment collected 3.5 pb$^-1$ of data with beam polarization $\sim$50\% and 7.5 pb$^-1$ of data with beam polarization $\sim$60\% in the years 2005 and 2006, respectively. In this talk, we present the latest results on an A$_{\rm LL}$ measurement for J/$\psi$ and open charm production measured by the PHENIX detector.